European Strategic Autonomy Is Political Improvisation

Strategic autonomy’ has become one of Europe’s favourite phrases, signalling independence and geopolitical maturity and suggesting a continent ready to assume greater responsibility for its own defence and less willing to rely indefinitely on American guarantees. Yet the real challenge has never been in declaring this ambition but in giving it institutional form, military substance, and political coherence.

That difficulty is now becoming harder to ignore. Article 42(7) of the Treaty on European Union, the Union’s mutual defence clause, is legally binding and politically significant, yet still remarkably vague in operational terms. It commits member states to aid and assist a fellow member that is the victim of armed aggression on its territory, but it leaves unanswered the practical questions that determine whether such a commitment is credible in a crisis.

The problem is not simply that Article 42(7) remains vague. It is that its vagueness exposes a wider weakness in Europe’s strategic discourse, namely the desire for autonomy without a fully developed architecture of defence. A serious defence commitment requires institutional clarity, agreed procedures, operational planning, and a political willingness to define who acts, how, and under what authority. On Article 42(7), Europe still lacks that clarity.